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G42 Cutter compensation right

Hurco WinMax (NC) G-code · Mill

Offsets the path to the right of the direction of travel by the tool radius. Use for climb milling inside pockets and bores.

Format

G42 {G00 or G01} X Y D

Addresses

Address	What it does
`X Y`	Lead in end point
`D`	Tool radius offset register, 1 to 200

How it works

Modal, group 07. Cancel with G40.

Example program

T1 M06 (.375 END MILL)
G90 G54 G00 X0. Y0. S4000 M03 (POCKET CENTER)
G43 H01 Z.1 M08 (LENGTH OFFSET)
G01 Z-.25 F8. (TO DEPTH)
…

The full 8-line example is in the app. Example is in inch. Check offsets and clearances first.

Watch out for

G17 only. D00 does not turn it on.
You can switch between G41 and G42 without G40 in between.
The tool must be smaller than the smallest inside arc, or the path sweeps the wrong way.

Related codes

G40 · G41

G42 on other controls

The same number can mean something different on another control.

Control	Meaning
Fanuc	Cutter compensation right
Haas NGC	Cutter compensation right
Mazak (EIA)	Cutter radius compensation right
Okuma OSP	Cutter radius compensation right
Mitsubishi M70 M80	Cutter radius comp right
Brother Speedio	Cutter compensation right
Siemens 840D 828D	Tool radius compensation right
Heidenhain TNC (ISO)	Radius compensation right
Fagor 8055 8065	Tool radius compensation right
LinuxCNC Tormach	Cutter compensation right
Mach3 Mach4	Cutter comp right
Centroid CNC12 Acorn	Cutter compensation right
Fadal	Cutter radius compensation right, conventional
Swiss (Citizen Star)	Nose radius compensation right

Every G-code for Hurco WinMax (NC) in your pocket. The app has the full example programs, search by number or shop word, a line decoder and calculators for tapping, threading and drilling.

Open G42 in the app All Hurco WinMax G-codes

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